Go on your friends list and look at all the deleted profiles. Facebook no longer deletes the profile from your friendlist. If you have 900 friends and 50 delete, it still shows 900 and the names of deactivated profiles are still in friend list, but with no avatar.

I went to my Facebook and found 8% of my friend list deactivated. I would be surprised if this entire hoopla resulted in more than 1% deletion but even 1% in NA is 1.8M accounts. That is around $200M a year loss for fb. Not a big deal, but their valuation is based on forward growth, so not tiny either